Beveling-machine.



w R 8 w m w m a m 6 m 7 a mw z m z R w a 5 4 4 Wm m m m 5 1541M .IIMYcm.

W 2 l d e? H W m w m M m a. 0

A. H. PRENZEL. BEVELING MAGHINE APPLICATION FILED 0 0122, 1909.

A. H. PRENZEL. BEVELING MAGHINE.

APPLICATION FILED 0012.2, 1900.

2 SHEETS-SHEET 2.

INVENT'OR ATTORNEYS rus NqRRls PETERS co., wnsummow, n. c:

Patented July 26, 1910.

FICE.

ADAM HENRY PRENZEL, 0F HALIFAX, PENNSYLVANIA.

BEVELINGr-MAGHINE.

sesame.

Specification of Letters Patent Patented J lily 26, 1910.

Application filed October 2, 1909. 7 Serial No. 520,672.

To all whom it may concern: 7

Be it known that I, ADAM HENRY PRENZEL, a citizen of the United States,and resident of Halifax, in the county of Dauphin and State ofPennsylvania,have invented certain new and useful Improvements inBeveling- Machines, of which the following is a specification.

My invention relates to improvements in devices for beveling heel seatsof shoes, and it consists in the combinations, constructions, andarrangements of parts herein described and claimed.

An object of my invention is to provide a device by means of which heelseats of those shoes in which underwedges are provided in the heelportions may be quicklyand accurately beveledalong the outer edge so asto permit the upper, which is fastened to the heel seat, to be placedfarther from the edge or nearer to the latter.

A further object of my invention is to provide means by which the angleof the bevel may be varied to suit various shapes or styles of shoes.

A further object of my invention is to provide a device which willautomatically bevel heel portions of varying thicknesses to the samedepth and at the same angle.

Further objects and advantages willap' pear in the followingspecification, and the novel features thereof will be particularlypointed out in the appended claims.

My invention is illustrated in the accompanying drawing in which similarreference characters indicate like parts in the several views, and inwhich- Figure 1 is a side view of the device, Fig. 2 is an enlarged endview of the upper portion of the machine, Fig. 8 is an enlarged sectionalong the line 33 Fig. 5, Fig. {1 is an enlarged section along the linetl of Fig. 5, Fig. 5 is an enlarged detail side view of a portion of thedevice, and Fig. 6 is a view of the opposite side from that shown inFig. 5.

In carrying out my invention, I provide a main standard or support 1,which has an opening 2 for the reception of the main driving Wheel 3.The latter is located on the shaft 4, secured to the standard 1 inbearings 5, which bears upon its outer end the driving pulleys 6. At thetop of the standard 1 is secured the cutting machine proper whichconsists of a base portion 7 bearing the arms 8 and 8 which support theits top a table 25 which is pivoted at 26 and is provided with anarc-shaped support 27 which has a slot 28 through which the adjustingscrew 29 is arranged to pass. The bottom part of the plate 2% isprovided with a laterally extending yoke 30, (see Fig. 41) through whicha screw 31 extends. The latter enters a threaded opening in the block28, and has on its lower end an integral thumb wheel 32. The screw bearsa shoulder 33 which is adjacent the yoke 30, and the portion of thescrew between the shoulder and the thumb wheel is enlarged as clearlyshown in the drawings. The screw bears a lock nut 34- between theshoulder and the lower end of the block 23. Secured to the block 23 bymeans of the screws 35 and 36 is a support 37. This support bears an arm38 which is pivoted at 39 to the support. One end of the arm carries agage wheel 10, (see Figs. 2 and 5), which has a milled edge and which ismounted for rotation upon the end of the arm by means of a short shaft41. The outer end of the arm 38 is pivotally secured to the slidingblock 42 which is threaded to receive the adjusting screw 18. The latteris mounted for rotation on an arm 87 of the support 37 and may bemanipulated by a milled head A l. A rod 15 has its upper end. securedinto the plate 24 while its lower end is attached to a foot lever 16.The shaft as shown in Fig, 1, passes through the base and has anadjustable arm at? which is secured to the lower end of the spring 18,the upper end of which is attached to the under side of the base 7.

From the foregoing description of the various parts of the device, theoperation thereof may be readily understood. The power for running theshaft 13 which bears the cutter wheel 19 is transmitted through thewheel 3 by means of the belt 19 over the pulley 50, secured to theshaft. The cutter wheel is therefore driven at a rapid rate. From Fig. 5it will be seen that the edges of the teeth of the cutter wheel areparallel with the aXis of the wheel. The movement of the plate 24bearing the supporting table 25 is first gaged by manipulation of thescrew 31, which is generally set so that the spring 48 will hold theplate 24 in an upper position when the stock has been removed but willnot permit it to come in contact with the teeth of the cutter wheel 19.This may be done by adjusting the screw so that the shoulder 33 will beengaged by the yoke on the plate 24. It may be locked in this positionby means of the lock nut 34. The gage wheel 4-0 is then set foreffecting a cut of the proper depth by manipulating the thumb wheel 44.,the block 42 rising and falling in response to the turning of thiswheel, and thus lowering and raising the gage wheel 40. When the stockis to be beveled, the foot lever 46 is depressed, thereby drawing downthe plate 24 and the table 25, which, of course has been set at theproper angle. The stock or heel portion is then thrust in until it meetsthe stop member 51 secured at the top of the block 23, and the footlever 46 is then released. The heel portion is turned, but is kept closeto the stop 51 and the edges are therefore beveled the angle at whichthe table 25 is inclined from the horizontal. Moreover, the gage wheelallows the same depth of cut, no matter what the thickness of the piecemay be, while the spring actuated plate holds the heel up to the cutter.If a thicker heel stock is to be beveled, the plate 24 willautomatically adjust itself to the thickness of the stock. This is animportant feature of my invention, since it does away with the necessityof adjusting the plate to a definite height for varying thicknesses ofstock.

I claim:

1. In a beveling machine, a rotary cutter, a gage therefor forregulating the depth of the cut, said gage comprising an adjustableblock, an arm pivoted thereto, a rotary gage wheel secured at the end ofsaid arm, and means carried by said block and adapted to engage theopposite end of said pivoted arm for moving said rotary gage toward oraway from the axis of said rotary cutter.

2. In a beveling machine, a rotary cutter, a gage therefor forregulating the depth of the cut, said gage comprising an adjustableblock, an arm pivoted thereto, a rotary gage wheel secured at the end ofsaid arm, an extension carried by said block, and an adjusting screwcarried by said extension and adapted to actuate said pivoted arm formoving said rotary gage toward or away from the axis of said rotarycutter.

3. In a beveling machine, a rotary cutter, a gage therefor forregulating the depth of the out, said gage comprising an adjustableblock, an arm pivoted thereto, a rotary gage wheel secured at the end ofsaid arm, an extension carried by said block, a slidable block carriedby said first-named block, pivotal connections between said slidableblock and said pivoted arm, and an adjusting screw carried by theextension on said firstnamed block for moving the said sliding block,thereby moving said rotary gage toward or away from the axis of saidrotary cutter.

ADAM HENRY PRENZEL.

lVitnesses L. IV. RYAN, G. W. SHULTZ.

